Holographic reconstruction of multistatic breast microwave radar images: Initial results on synthetic phantoms

摘要

During the last decade, Microwave Radar has been proposed as a complementary technology for breast cancer detection. This imaging modality has several features that make it beneficial from a clinical viewpoint such as the use of non-ionizing radiation. Nevertheless, the reconstruction of this data is non-trivial due to the phase wrapping introduced by the scan geometry and the near field distances between the antenna and the targets. This paper presents preliminary results obtained using a novel algorithm to reconstruct images from experimental multistatic breast microwave radar data. This image formation approach performs a series of operations in the frequency domain to compensate the effects of the scan geometry. Compared with its monostatic counterpart, the proposed reconstruction algorithm generated images with a higher signal to noise ratio and contrast.